Aquarium



FIG. 1 is an isometric view of an aquarium showing my new design;

FIG. 2 is a right side view thereof, the left side being a mirror image of the right side shown;

FIG. 3 is a top view thereof, the bottom being omitted for case of illustration;

FIG. 4 is a rear view thereof;

FIG. 5 is a front view thereof; and

FIG. 6 is a bottom view thereof.

The electric cord has been broken away in FIG. 6 to indicate indeterminate length. 

The ornamental design for an aquarium, as shown and described. 